cylinder head material
Fleet Mechanic
Joined: Nov 2002
Posts: 1,643
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There is a race only head that was made by Alan Johnson for Ford Racing. It had no provisions for cooling - no water jackets.
Generally speaking, for an aluminum head to be as thermodynamically efficient as a cast iron head it needs at least another half point of compression ratio.
Now if you are looking to save weight and have the ease of repairability of aluminum plus a less expensive manufacturing process then I guess an aluminum head makes sense.
Generally speaking, for an aluminum head to be as thermodynamically efficient as a cast iron head it needs at least another half point of compression ratio.
Now if you are looking to save weight and have the ease of repairability of aluminum plus a less expensive manufacturing process then I guess an aluminum head makes sense.
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